Electric toothbrush



FIG. 1 is a front elevation of an electric toothbrush showing my new design;

FIG. 2 is a left side elevation view thereof, the right side being a mirror image;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front perspective view thereof;

FIG. 7 is a back perspective view thereof;

FIG. 8 is a front elevation of a second embodiment of the electric toothbrush, with the broken lines being for illustrative purposes only and forming no part of this embodiment;

FIG. 9 is a left side elevation view of FIG. 8, the right side being a mirror image thereof;

FIG. 10 is a back elevation view of FIG. 8;

FIG. 11 is a top view of FIG. 8;

FIG. 12 is a bottom view of FIG. 8;

FIG. 13 is a front perspective view of FIG. 8; and,

FIG. 14 is a back perspective view of FIG. 8. 

The ornamental design for an electric toothbrush, as shown and described. 